Questions: Required practicals and maths skills
Pick a question type. Each time you get new numbers. Free ones are marked free.
Units and magnification
- mm, μm and nmCalculate, 1 mark, free
- MagnificationCalculate, 2 marks, free
- Real size from magnificationCalculate, 2 marks, free
- Sizes in standard formCalculate, 1 mark, free
- Total magnification of a microscopeCalculate, 1 mark, free
- Light and electron microscopesChoose, 1 mark, free
- Real size from a scale barCalculate, 2 marks, free
Means, percentages and uncertainty
- Percentage change in massCalculate, 2 marks, free
- Mean of repeatsCalculate, 1 mark, free
- Spotting an anomalyChoose, 1 mark, free
- Range and uncertaintyCalculate, 2 marks, free
- Percentage of a totalCalculate, 1 mark, free
- Variables in a biology investigationChoose, 1 mark, free
- Percentage difference between two meansCalculate, 2 marks, free
Rates and graphs
- Rate as 1000 ÷ timeCalculate, 1 mark, Plus
- Rate per minuteCalculate, 1 mark, Plus
- Optimum from a graphDetermine, 1 mark, Plus
- Concentration with no change in massDetermine, 2 marks, Plus
- Rate from the gradientCalculate, 2 marks, Plus
- Choosing a chartChoose, 1 mark, Plus
- Predicting osmosisChoose, 1 mark, Plus
Sampling and estimates
- Estimating a population with quadratsCalculate, 3 marks, Plus
- Capture-recapture estimateCalculate, 2 marks, Plus
- Why place quadrats at randomChoose, 1 mark, Plus
- TransectsChoose, 1 mark, Plus
- Efficiency of biomass transferCalculate, 2 marks, Plus
- Area of a clear zoneCalculate, 2 marks, Plus, Biology only
- Plants per square metreCalculate, 2 marks, Plus
Ratios and probability
- Surface area to volume ratioCalculate, 2 marks, Plus
- Probability from a crossCalculate, 2 marks, Plus
- Expected numbers from a ratioCalculate, 1 mark, Plus
- Cells after repeated divisionCalculate, 2 marks, Plus
- Body mass indexCalculate, 2 marks, Plus
- Correlation and causeChoose, 1 mark, Plus
- Cardiac outputCalculate, 2 marks, Plus
Required practicals review
- What each required practical doesChoose, 1 mark, Plus
- Food test resultsChoose, 1 mark, Plus
- Hazards in biology practicalsChoose, 1 mark, Plus
- Improving an experimentChoose, 1 mark, Plus
- Plan a biology investigation (6 marks)Describe, 6 marks, Plus
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